parser.add_argument('bitrate',type=int,help='bitrate to test')
parser.add_argument('--reference_opus_demo',type=str,default='./opus_demo',help='reference opus_demo binary for generating bitstreams and reference output')
parser.add_argument('--test_opus_demo',type=str,default='./opus_demo',help='opus_demo binary under test')
parser.add_argument('--test_opus_demo_options',type=str,default='-dec_complexity 7',help='options for test opus_demo (e.g. "-dec_complexity 7")')
parser.add_argument('--verbose',type=int,default=0,help='verbosity level: 0 for quiet (default), 1 for reporting individual test results, 2 for reporting per-item scores in failed tests')